5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A Output Current
RoHS Compliant
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Features
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
Compatible in a Pb-free or SnPb wave-soldering
environment (Z versions)
Wide input voltage range (5Vdc-13.8Vdc)
Output voltage programmable from 0.6Vdc to
5.0Vdc via external resistor
Tunable Loop
response
TM
to optimize dynamic output voltage
Fixed switching frequency
Output overcurrent protection (non-latching)
Over temperature protection
Remote On/Off
Remote Sense
Power Good Signal
Over voltage protection – Hiccup Mode
Small size:
36.8 mm x 27.9 mm x 10.7 mm
(1.45 in. x 1.10 in. x 0.42 in)
Wide operating temperature range (0°C to 70°C)
UL* 60950 Recognized, CSA
Certified, and VDE
Licensed
‡
0805 (EN60950-1 3rd edition)
ISO** 9001 and ISO 14001 certified manufacturing
facilitiesISO** 9001 and ISO 14001 certified
manufacturing facilities
†
C22.2 No. 60950-00
Description
The Naos Raptor 40A SIP power modules are non-isolated dc-dc converters in an industry standard package that
can deliver up to 40A of output current with a full load efficiency of 92% at 3.3Vdc output voltage (V
These modules operate over a wide range of input voltage (V
output voltage from 0.6dc to 5.0Vdc, programmable via an external resistor. Features include remote On/Off,
adjustable output voltage, over current and over temperature protection. A new feature, the Tunable Loop
the user to optimize the dynamic response of the converter to match the load.
* UL is a re gistered trademark of Underwriters Laboratories, Inc.
†
CSA is a reg istered trademark of Canadian Standards Associat ion.
‡
VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Orga nization of Standards
= 5Vdc-13.8Vdc) and provide a precisely regulated
IN
Document No: DS06-128 ver. 1.15
PDF name: NSR040A0X_ds.pdf
IN = 12Vdc).
TM
, allows
Page 2
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage
Continuous All V
Operating Ambient Temperature All T
IN
A
-0.3 15 Vdc
0 70 °C
(see Thermal Considerations section)
Storage Temperature All T
stg
-55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All VIN 5 13.8 Vdc
Maximum Input Current All I
(VIN= V
Input No Load Current V
(VIN = 12Vdc, IO = 0, module ON) V
IN, min
to V
IN, max
, IO=I
O, max VO,set
= 3.3Vdc)
= 0.6 Vdc I
O,set
= 5.0Vdc I
O,set
Input Stand-by Current All I
IN,max
IN,No load
IN,No load
IN,stand-by
(VIN = 12Vdc, module disabled)
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
V
= I
IN, max, IO
; See Test configuration section)
Omax
IN, min
to
All 130 mAp-p
Input Ripple Rejection (120Hz) All 50 dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to
achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fastacting fuse with a maximum rating of 30A (see Safety Considerations section). Based on the information provided in
this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be
used. Refer to the fuse manufacturer’s data sheet for further information.
30 Adc
165 mA
360 mA
23 mA
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Page 3
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Electrical Specifications(continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point
(VIN=
IN, min
, IO=I
, TA=25°C) V
O, max
V
≥ 1.2Vdc
o, SET
< 1.2Vdc All V
o, SET
All V
Output Voltage All V
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range All V
Selected by an external resistor
Output Regulation (for VO ≥ 2.5V)
O, set
O, set
O, set
O
Input range1 (5V – 9V); range2 (9V – 13.8V)
Line (Range1, range2) All
Load (IO=I
O, min
to I
) All
O, max
Line & Load All
Output Regulation (for VO < 2.5V)
Input range1 (5V – 9V); range2 (9V – 13.8V)
Line (Range1, range2) All
Load (IO=I
O, min
to I
) All
O, max
Line & Load All
Output Ripple and Noise on nominal output
(VIN=V
IN, nom
and IO=I
O, min
to I
Cout = 0μF)
O, max,
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 0.6V
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1V
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.5V
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 2.5V
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 3.3V
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 5.0V
External Capacitance1`
Without the Tunable Loop
TM
ESR ≥ 1 mΩ All C
With the Tunable Loop
TM
ESR ≥ 0.15 mΩ All C
ESR ≥ 10 mΩ
All
Output Current All I
Output Current Limit Inception (Hiccup Mode ) All I
Output Short-Circuit Current All I
(VO≤250mV) ( Hiccup Mode )
Efficiency V
VIN= V
IO=I
, TA=25°C V
IN, nom
= V
O, max , VO
V
O,set
V
V
V
= 0.6Vdc η 70.9 %
O,set
= 1.2Vdc η 82.3 %
O,set
= 1.8Vdc η 86.8 %
O,set
= 2.5Vdc η 89.5 %
O,set
= 3.3Vdc η 91.4 %
O,set
= 5.0Vdc η 93.7 %
O,set
Switching Frequency All f
1
External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as
getting the best transient response. See the Tunable Loop
TM
section for details.
C
O, max
O, max
O, max
o
O, lim
O, s/c
sw
–0.8
–10
–1.1%
⎯
⎯
⎯
+0.8 % V
+10 mV
+1.1% % V
0.6 5.0 Vdc
0.3 % V
0.6 % V
0.8 % V
9 mV
12 mV
15 mV
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
30 mV
30 mV
40 mV
40 mV
60 mV
60 mV
⎯
1000 μF
0
⎯
⎯
⎯
1500 μF
10000 μF
40 Adc
103 130 180 % Io
⎯
5.7
⎯
Arms
⎯
500
⎯
O, set
O, set
O, set
O, set
O, set
pk-pk
pk-pk
pk-pk
pk-pk
pk-pk
pk-pk
kHz
LINEAGEPOWER3
Page 4
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter Device Symbol Min Typ Max Unit
On/Off Signal Interface
(VIN=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to GND)
Logic High (On/Off pin open – Module ON)
Input High Current All IIH
Input High Voltage All VIH
Logic Low (Module OFF)
Input Low Current All IIL
Input Low Voltage All VIL
PwGood (Power Good) Signal Interface Open
Collector/Drain
PwGood = High = Power Good
PwGood = Low = Power Not Good
Logic level low voltage 0 0.4 V
Logic level high voltage 2.4 5.25 V
Sink Current, PwGood = low 4 mA
0.5
1.0
⎯
⎯
3.3 mA
5.5 V
⎯⎯
-0.3
⎯
200 µA
0.4 V
Turn-On Delay and Rise Times
(VIN=V
IN, nom
, IO=I
to within ±1% of steady state)
O, max , VO
Case 1: On/Off input is enabled and then
input power is applied (delay from instant at
which VIN = V
until Vo = 10% of Vo, set)
IN, min
All Tdelay 3 msec
Case 2: Input power is applied for at least one second
and then the On/Off input is enabled (delay from instant
All Tdelay 1.2 msec
at which On/Off is enabled until Vo = 10% of Vo, set)
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot
IO = I
O, max
; V
IN, min
– V
, TA = 25 oC
IN, max
All Trise
0.5% V
Remote Sense Range All
Over Temperature Protection All T
(See Thermal Considerations section)
Input Undervoltage Lockout
Turn-on Threshold All
Turn-off Threshold All
Overvoltage Protection (Hiccup Mode) All
127 ºC
ref
3 msec
⎯⎯
0.5 V
4.4 4.8 Vdc
4.2 Vdc
120 125 130 V
O, set,
O, set
%
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Page 5
Data Sheet
OUTPUT
CURRENT
OUTPU
T
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves
The following figures provide typical characteristics for the Naos Raptor 40A modules at 0.6Vout and 25ºC.
85
80
75
70
65
Vin = 5V
Vin = 12V
Vin = 14V
EFFICIENCY, η (%)
60
010203040
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LF M)
1.5m/s
(300LFM)
1m/s
(200LF M)
(100LFM)
Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
0.5m/s
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 3. Typical output ripple and noise (V
I
o,max).
(V) (2V/div)
ON/OFF
(V) (200mV/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io =
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 4. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (200mV/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 5. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 6. Typical Start-up Using Input Voltage (V
9V, I
o = Io,max).
IN =
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Page 6
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 40A modules at 1.2Vout and 25ºC.
95
90
85
80
75
70
EFFICIENCY, η (%)
65
0 10203040
Vin = 5V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LFM)
(300LFM)
1.5m/s
1m/s
(200LFM)
0.5m/s
(100LFM)
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 9. Typical output ripple and noise (V
o,max).
I
(V) (2V/div)
ON/OFF
(V) (500mV/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io =
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 10. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (500mV/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 11. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 12. Typical Start-up Using Input Voltage (V
12V, I
o = Io,max).
IN =
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Page 7
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 40A modules at 1.8Vout and at 25ºC.
95
90
85
80
75
Vin = 5V
Vin = 12V
Vin = 14V
EFFICIENCY, η (%)
70
0 10203040
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LFM)
1.5m/s
(300LFM)
`
1m/s
(200LFM)
0.5m/s
(100LFM)
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 15. Typical output ripple and noise (V
o,max).
= I
(V) (2V/div)
ON/OFF
(V) (1V/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 16. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (1V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 17. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 18. Typical Start-up Using Input Voltage (V
12V, I
o = Io,max).
IN =
LINEAGEPOWER7
Page 8
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 2.5Vout and 25ºC.
100
95
90
85
80
75
EFFICIENCY, η (%)
70
Vin = 5V
Vin = 12V
0 10203040
Vin = 14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
0.5m/s
(100LFM)
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 21. Typical output ripple and noise (V
= I
o,max).
(V) (2V/div)
ON/OFF
(V) (1V/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 22. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (1V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 23. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 24. Typical Start-up Using Input Voltage (V
12V, I
o = Io,max).
IN =
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Page 9
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 3.3Vout and 25ºC.
100
95
90
85
80
75
EFFICIENCY, η (%)
70
010203040
Vin = 7V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
(100LFM)
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
0.5m/s
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 27. Typical output ripple and noise (V
= I
o,max).
(V) (2V/div)
ON/OFF
(V) (1V/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 28. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (1V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 29. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 30. Typical Start-up Using Input Voltage (V
12V, I
o = Io,max).
IN =
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Page 10
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 5Vout and 25ºC.
100
95
90
85
80
75
EFFICIENCY, η (%)
70
010203040
Vin = 9V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output Current.
45
40
35
30
25
20
15
10
OUTPUT CURRENT, Io (A)
25303540455055606570
2m/s
(400LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
0.5m/s
(100LFM)
NC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 33. Typical output ripple and noise (V
= I
o,max).
(V) (2V/div)
ON/OFF
(V) (2V/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (1ms/div) TIME, t (1ms/div)
IN = 12V, Io
(V) (200mV/div)
O
,
(A) (10Adiv) V
O
I
Figure 34. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (2V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 35. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 36. Typical Start-up Using Input Voltage (V
12V, I
o = Io,max).
IN =
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Page 11
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Test Configurations
TO OSCILLOSCOPE
L
TEST
1μH
CS 1000μF
BATTERY
NOTE: Measure input reflected ripple current with a simulated
Electrolytic
E.S.R.<0.1Ω
@ 20°C 100kHz
source induct ance (L
possible battery impedance. Measure current as shown
above.
) of 1μH. Capacit or CS offsets
TEST
Figure 37. Input Reflected Ripple Current Test
Setup.
COPPER STRIP
V
(+)
O
1uF .
COM
GROUND PLANE
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 38. Output Ripple and Noise Test Setup.
R
R
contact
distribution
R
R
contact
distribution
NOTE: All volt age meas urements to be taken at th e module
terminals , as shown above. If socket s are us ed then
Kelvin conn ections are requir ed at the modu le termi nals
to avoid m easurem ent errors due to s ocket c ontact
resistance.
VIN(+)
V
IN
COM
Figure 39. Output Voltage and Efficiency Test
Setup.
V
. I
O
Efficiency
=
η
VIN. I
O
IN
10uF
V
COM
Tantalum
O
CURRENT PROBE
CIN
2x100μF
SCOPE
V
O
x 100 %
VIN(+)
COM
RESISTIVE
LOAD
R
contactRdistribution
R
contactRdistribution
R
LOAD
Naos Raptor 40A Non Isolated Power Module:
Design Considerations
Input Filtering
The Naos Raptor 40A module should be connected
to a low-impedance source. A highly inductive
source can affect the stability of the module. An
input capacitance must be placed directly adjacent
to the input pin of the module, to minimize input
ripple voltage and ensure module stability.
To minimize input voltage ripple, low-ESR ceramic
capacitors are recommended at the input of the
module. Figure 40 shows the input ripple voltage for
various output voltages at 40A of load current with
1x22 µF or 2x22 µF ceramic capacitors and an input
of 12V.
300
250
200
1x22uF
2x22uF
150
100
50
0
Input Ripple Voltage (mVp-p)
0.51 1.52 2.53 3.54 4.55
Output Voltage (Vdc)
Figure 40. Input ripple voltage for various output
voltages with 1x22 µF or 2x22 µF ceramic
capacitors at the input (40A load). Input voltage is
12V.
Output Filtering
The Naos Raptor 40A modules are designed for low
output ripple voltage and will meet the maximum
output ripple specification with no external capacitors.
However, additional output filtering may be required
by the system designer for a number of reasons.
First, there may be a need to further reduce the
output ripple and noise of the module. Second, the
dynamic response characteristics may need to be
customized to a particular load step change.
To reduce the output ripple and improve the dynamic
response to a step load change, additional
capacitance at the output can be used. Low ESR
ceramic and polymer are recommended to improve
the dynamic response of the module. For stable
operation of the module, limit the capacitance to less
than the maximum output capacitance as specified in
the electrical specification table. Optimal
performance of the module can be achieved by using
the Tunable Loop
data sheet.
TM
feature described later in this
LINEAGEPOWER11
Page 12
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Safety Considerations
For safety agency approval the power module must
be installed in compliance with the spacing and
separation requirements of the end-use safety agency
standards, i.e., UL 60950-1, CSA C22.2 No. 60950-103, and VDE 0850:2001-12 (EN60950-1) Licensed.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power
module has extra-low voltage (ELV) outputs when all
inputs are ELV.
The input to these units is to be provided with a fastacting fuse with a maximum rating of 30A in the
positive input lead
.
Naos Raptor 40A Non Isolated Power Module:
Feature Descriptions
Remote On/Off
The Naos Raptor 40A power modules feature a
remote On/Off capability with positive logic. If not
using the On/Off pin, leave the pin open (the module
will be ON. The On/Off signal (V
ground.
During a Logic High on the On/Off pin, the module
remains ON. During Logic-Low, the module is turned
OFF.
MOD UL E
2K
100K
ON/OF F
2.2K
47K
Figure 41. Remote On/Off Implementation.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current
limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. The unit
operates normally once the output current is brought
back into its specified range. The typical average
output current during hiccup is 10% of I
) is referenced to
On/Off
5V
2.2K
47K
GND
o,max
2K
ENABLE
.
Over Temperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit will
shut down if the overtemperature threshold of 127ºC
is exceeded at the thermal reference point T
red
. The
thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating.
Once the unit goes into thermal shutdown, it will then
wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
LINEAGEPOWER12
Page 13
Data Sheet
July 11, 2011
Power Good
The Naos Raptor 40A power modules provide a
Power Good Status signal that indicates whether or
not the power module is functioning properly.
PwGood is a power good signal implemented with an
open-collector output to indicate that the output
voltage is within the regulation limits of the power
module. The PwGood signal will be de-asserted to a
low state If any condition such as over-current, or
over-voltage occurs which would result in the output
voltage going out of range.
Output Voltage Programming
The output voltage of the Naos Raptor 40A module
can be programmed to any voltage from 0.6Vdc to
5.0Vdc by connecting a resistor between the Trim +
and Trim - pins of the module. Certain restrictions
apply on the output voltage set point depending on
the input voltage. These are shown in the Output
Voltage vs. Input Voltage Set Point Area plot in Fig.
43. The Lower Limit curve shows that for output
voltages of 2.75V and higher, the input needs to be
larger than the minimum of 4.5V.
V
(+)
IN
ON/OFF
Figure 42. Circuit configuration for programming
output voltage using an external resistor.
16
14
12
10
8
6
Input Voltage (v)
4
2
0
0.511.522.533.544.55
Fig. 43. Output Voltage vs. Input Voltage Set Point
Area plot showing limits where the output voltage
can be set for different input voltages.
V O (+)
TRIM+
TRIM−
GND
Output Voltage (V)
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Vout
R
trim
LOAD
Naos Raptor 40A Non Isolated Power Module:
Without an external resistor between Trim + and Trim
- pins, the output of the module will be 0.6Vdc. To
calculate the value of the trim resistor, Rtrim for a
desired output voltage, use the following equation:
Rtrim
Vo
−
2.1
=k
Rtrim is the external resistor in kΩ
Vo is the desired output voltage
Table 1 provides Rtrim values required for some
common output voltages.
By using a ±0.1% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±0.8% can be
achieved as specified in the electrical specification.
The POL Programming Tool available at
www.lineagepower.comunder the Design Tools
section, helps determine the required trim resistor
needed for a specific output voltage.
Note: Vin ≥ 180% of Vout at the module output pin.
Table 1
V
(V)
O, set
0.6 Open
1.0 3000
1.2 2000
1.5 1333
1.8 1000
2.5 632
3.3 444
5.0 273
Monotonic Start-up and Shutdown
The Naos Raptor 40A
modules have monotonic start-
up and shutdown behavior for any combination of
rated input voltage, output current and operating
temperature range.
Rtrim (Ω)
Ω
)6.0(
LINEAGEPOWER13
Page 14
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Feature Descriptions (continued)
Tunable Loop
The Naos Raptor 40A modules have a new feature
that optimizes transient response of the module called
Tunable Loop
added to improve output voltage transient response
due to load current changes. Sensitive loads may
also require additional output capacitance to reduce
output ripple and noise. Adding external capacitance
however affects the voltage control loop of the
module, typically causing the loop to slow down with
sluggish response. Larger values of external
capacitance could also cause the module to become
unstable.
To use the additional external capacitors in an optimal
manner, the Tunable Loop
to be tuned externally by connecting a series R-C
between the SENSE and TRIM pins of the module, as
shown in Fig. 44. This R-C allows the user to
externally adjust the voltage loop feedback
compensation of the module to match the filter
network connected to the output of the module.
Recommended values of R
in Tables 2 and 3. Table 2 lists recommended values
of R
TUNE
voltage deviation limits for some common output
voltages in the presence of a 20A to 40A step change
(50% of full load), with an input voltage of 12V. Table
3 shows the recommended values of R
for different values of ceramic output capacitors up to
1500uF, again for an input voltage of 12V. The value
of R
in Tables 2 and 3. Please contact your Lineage Power
technical representative to obtain more details of this
feature as well as for guidelines on how to select the
right value of external R-C to tune the module for best
transient performance and stable operation for other
output capacitance values.
should never be lower than the values shown
TUNE
TM
TM
. External capacitors are usually
TM
feature allows the loop
and C
TUNE
and C
in order to meet 2% output
TUNE
VOUT
SENSE+
TUNE
TUNE
RTune
are given
and C
TUNE
Naos Raptor 40A Non Isolated Power Module:
Table 2. Recommended values of R
to obtain transient deviation of 2% of Vout for a
20A step load with Vin=12V.
Vout5V 3.3V 2.5V 1.8V 1.2V 0.69V
6x47μF
2x47μF
Cext
R
C
+
330μF
3x330μF
Polymer
TUNE
TUNE
ΔV
Polymer
75 62 62 39 39 30
10nF 18nF 27nF 47nF 68nF 180nF
100mV 64mV 50mV 36mV 24mV 12mV
+
4x47μF
+
4x330μF
Polymer
3x47μF
6x330μF
Polymer
Table 3. General recommended values of of R
and C
for Vin=12V and various external
TUNE
ceramic capacitor combinations.
Cext
2x47μF 4x47μF 10x47μF 20x47μF 30x47μF
R
C
75 75 39 33 30
TUNE
3300pF 4700pF8.2nF 12nF 18nF
TUNE
+
and C
TUNE
2x47μF
10x330μF
Polymer
+
TUNE
2x47μF
+
22x330μF
Polymer
TUNE
MODULE
CTune
TRIM+
RTrim
TRIM-
Figure. 44. Circuit diagram showing connection of
and C
R
TUME
module.
LINEAGEPOWER14
to tune the control loop of the
TUNE
Page 15
Data Sheet
p
8
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Thermal Considerations
Power modules operate in a variety of thermal
environments; however sufficient cooling should
always be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel. The test setup is shown in Figure 45. The derating data applies
to airflow in either direction of the module’s axis.
50.
76.2
[3.0]
[2.00]
[0.285]
7.24
Pow er Modul e
Probe Locat ion
for measuri ng
airf low and
ambient
tem
erature
Wind Tunnel
PWBs
Naos Raptor 40A Non Isolated Power Module:
delivered at different local ambient temperatures (T
for airflow conditions ranging from natural convection
and up to 2m/s (400 ft./min) are shown in the
Characteristics Curves section.
)
A
Figure 46. Temperature measurement location T
ref
Post solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect
both the reliability of a power module and the
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning and
drying procedures, refer to the Board Mounted Power Modules: Soldering and Cleaning Application Note.
.
Air
Flow
Figure 45. Thermal Test Set-up.
The thermal reference point, T
specifications are shown in Figure 46. For reliable
operation this temperature should not exceed 122
The output power of the module should not exceed
the rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
used in the
ref
o
C.
Heat Transfer via Convection
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves
showing the maximum output current that can be
Through-Hole Lead-Free Soldering
Information
The RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes.
A maximum preheat rate of 3°C/s is suggested. The
wave preheat process should be such that the
temperature of the power module board is kept below
210°C. For Pb solder, the recommended pot
temperature is 260°C, while the Pb-free solder pot is
270°C max. Not all RoHS-compliant through-hole
products can be processed with paste-through-hole
Pb or Pb-free reflow process. If additional information
is needed, please consult with your Lineage Power
technical representative for more detail.
LINEAGEPOWER15
Page 16
Data Sheet
)
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Mechanical Outline
Dimensions are in inches and (millimeters).
Tolerances: x.xx in. ± 0.02 in. (x.x mm ± 0.5 mm) [unless otherwise indicated]
x.xxx in ± 0.010 in. (x.xx mm ± 0.25 mm)
L = 3.3 ± 0.5mm (0.13 ± 0.02 in.
Pin Function Pin Function
1 Vout
2 Vout 9 PwGood
3 Vout 10 Sense -
4 GND 11 Sense +
5 GND 12 Vin
6 On/Off 13 Vin
7 Trim - 14 GND
15 GND
Pin Out
Side View
8 Trim +
LINEAGEPOWER16
Page 17
Data Sheet
July 11, 2011
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
Naos Raptor 40A Non Isolated Power Module:
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.2 mm (x.xx in. ± 0.01 in.) [unless otherwise indicated]
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
pplication. No rights under any patent accompany the sale of any such product(s) or information.
Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.
2011 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
LINEAGEPOWER18
Document No: DS06-128 ver. 1.15
PDF name: NSR040A0X_ds.pdf
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